I ran chown -R as su in terminal and nothing seemed to happen.
I logged in as Root from the main log in screen again, started digikam and got the following dialog box:
This is the same box I saw before digikam crashed on my home account. I chose the first option,(bad choice!).
This time in root I chose do nothing and then the second box came up, I chose do nothing again and digikam started as normal but I could not access any photos.
I didn't change the location of my photos so I don't know why it was asking me where they were moved.
Except for a few pictures I am currently working on, I keep all my photos on a second internal hard drive.